package api;

public class String1 {
    //空参构造
    public static void main(String[] args) {
        String s1=new String();
        System.out.println("@"+s1+1531);

        String s2=new String("ABC");
        System.out.println(s2);

        char[]chs={'a','b','c','d'};
        String s3 =new String(chs);
        System.out.println(s3);
    }
}
